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5 Written questions

5 Matching questions

  1. Sea Salts
  2. Freezing
  3. Pack Ice
  4. Pelagic Zone
  5. Upwelling
  1. a The region of an ocean or body of fresh water above the benthic zone.
  2. b A floating layer of sea ice that completely covers an area of the ocean surface.
  3. c The movement of deep, cold, and nutrient-rich water to the surface.
  4. d A method of desalination where water is frozen. Then the first ice crystals that form do not contain salt. The ice can be removed and melted to obtain fresh water.
  5. e Dissolved solids that make up about 3.5% of the mass of ocean water. These dissolved solids give the ocean its salty taste.

5 Multiple choice questions

  1. Begins at the continental slope and extends to a depth of 4,000 meters.
    animals that live there: octopi, sea stars, and brachiopods.
  2. All organisms that swim actively in open water, independent of currents
  3. A popular method for desalinating ocean water. It includes the use of special membranes that allow water under high pressure to pass through and that block the dissolved salts.
  4. Microscopic plants in the ocean that provide food to many of the ocean's organisms.
  5. The raising of aquatic plants and animals for human use or consumption.

5 True/False questions

  1. Trace ElementsA floating layer of sea ice that completely covers an area of the ocean surface.

          

  2. BenthosOrganisms that live at the bottom of oceans or bodies of fresh water.

          

  3. Sublittoral ZoneBegins at the continental slope and extends to a depth of 4,000 meters.
    animals that live there: octopi, sea stars, and brachiopods.

          

  4. DesalinationA process of removing salt from ocean water.

          

  5. DistillationA method of desalination where ocean water is heated to remove salt. Heat causes liquid water to evaporate and leave dissolved salts behind. When the water vapor condenses, the result is pure fresh water.

          

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